Komatsu PC1250 -11R PC1250SP-11R Hydraulic Excavator Shop Manual SEN06824-01 – PDF DOWNLOAD

Komatsu PC1250 -11R PC1250SP-11R Hydraulic Excavator Shop Manual SEN06824-01 – PDF DOWNLOAD

IMAGES PREVIEW OF THE MANUAL:

DESCRIPTION:

Komatsu PC1250 -11R PC1250SP-11R Hydraulic Excavator Shop Manual SEN06824-01 – PDF DOWNLOAD

SERIAL NUMBERS

PC1250- 50090 and up
PC1250SP- 50090 and up

FOREWORD, SAFETY, BASIC INFORMATION:
HOW TO READ THE SHOP MANUAL:
• Some of the attachments and options described in this shop manual may not be available in some areas. If
they are required, consult your Komatsu distributor.
• The materials and specifications are subject to change without notice.
• Shop Manuals are available for “machine part” and “engine part”. For the engine unit, see the shop manual
for the machine which has the same engine model.
• Actual machine may differ from the images which are contained in this manual. A typical model is shown in
the illustrations of this shop manual.
Composition of the shop manual
This shop manual contains technical information necessary to perform services in workshops. It is divided into
the following chapters for the ease of use.
00 INDEX AND FOREWORD
This section describes the index, foreword, safety, and basic information.
01 SPECIFICATIONS
This section describes the specifications of the machine.
10 STRUCTURE AND FUNCTION
This section describes the structure and operation of each component with respect to each system. “STRUCTURE
AND FUNCTION” is helpful in not only understanding the structure of each component but performing
troubleshooting.
20 STANDARD VALUE TABLE
This section describes the standard values for new machine and failure criteria for testing and adjusting, and
troubleshooting. Use the standard values table to check the standard values for testing and adjusting, and judge
troubles in troubleshooting.
30 TESTING AND ADJUSTING
This section describes the measuring tools and measuring methods for testing and adjusting as well as the adjusting
method of each part. The standard values and repair limit for TESTING AND ADJUSTING are described
in “STANDARD VALUE TABLE”.

TABLE OF CONTENTS:

Komatsu PC1250 -11R PC1250SP-11R Hydraulic Excavator Shop Manual SEN06824-01 – PDF DOWNLOAD

00 INDEX AND FOREWORD 00-1
ABBREVIATION LIST 00-18
FOREWORD, SAFETY, BASIC INFORMATION 00-24
HOW TO READ THE SHOP MANUAL 00-24
SAFETY NOTICE FOR OPERATION 00-26
PRECAUTIONS TO PREVENT FIRE 00-34
ACTIONS IF FIRE OCCURS 00-36
PRECAUTIONS FOR DISPOSING OF WASTE MATERIALS 00-37
PRECAUTIONS FOR HANDLING HYDRAULIC EQUIPMENT 00-38
PRECAUTIONS FOR DISCONNECTION AND CONNECTION OF PIPINGS 00-41
PRECAUTIONS FOR HANDLING ELECTRICAL EQUIPMENT 00-47
PRECAUTIONS FOR HANDLING FUEL SYSTEM EQUIPMENT 00-49
PRECAUTIONS FOR HANDLING INTAKE SYSTEM EQUIPMENT 00-50
PRACTICAL USE OF KOMTRAX 00-51
DISCONNECT AND CONNECT PUSH-PULL TYPE COUPLER 00-52
PRECAUTIONS FOR DISCONNECTION AND CONNECTION OF CONNECTORS 00-56
METHOD FOR DISCONNECTING AND CONNECTING DEUTSCH CONNECTOR 00-60
METHOD FOR DISCONNECTING AND CONNECTING SLIDE LOCK TYPE CONNECTOR 00-61
METHOD FOR DISCONNECTING AND CONNECTING CONNECTOR WITH LOCK TO PULL 00-63
METHOD FOR DISCONNECTING AND CONNECTING CONNECTOR WITH LOCK TO PUSH 00-64
METHOD FOR DISCONNECTING AND CONNECTING CONNECTOR WITH HOUSING TO ROTATE
00-66
HOW TO READ ELECTRICAL WIRE CODE 00-67
EXPLANATION OF TERMS FOR MAINTENANCE STANDARD 00-71
STANDARD TIGHTENING TORQUE TABLE 00-74
CONVERSION TABLE 00-81
01 SPECIFICATIONS 01-1
CONTENTS 01-2
SPECIFICATIONS 01-3
SPECIFICATION DRAWING 01-3
WORKING RANGE DRAWINGS 01-5
SPECIFICATIONS 01-7
WEIGHT TABLE 01-13
FUEL, COOLANT AND LUBRICANT TO MEET AMBIENT TEMPERATURE 01-16
10 STRUCTURE AND FUNCTION 10-1
CONTENTS 10-2
BOOT-UP SYSTEM 10-5
LAYOUT DRAWING OF BOOT-UP SYSTEM 10-5
SYSTEM OPERATING LAMP SYSTEM 10-6
BATTERY DISCONNECT SWITCH 10-8
ENGINE SYSTEM 10-9
LAYOUT DRAWING OF ENGINE SYSTEM 10-9
ENGINE CONTROL SYSTEM 10-11
AUTO-DECELERATION SYSTEM 10-14
AUTOMATIC LOW IDLE SYSTEM 10-16
ENGINE AUTOMATIC WARM-UP SYSTEM 10-18
OVERHEAT PREVENTION SYSTEM 10-20
TURBOCHARGER PROTECTION SYSTEM 10-21
AUTOMATIC IDLE STOP SYSTEM 10-22
COMPONENT PARTS OF ENGINE SYSTEM 10-25
COOLING SYSTEM 10-28
LAYOUT DRAWING OF COOLING SYSTEM 10-28
FAN SPEED CONTROL SYSTEM OF HYDRAULIC FAN 10-30
ENGINE OUTPUT CONTROL SYSTEM OF HYDRAULIC FAN 10-32
FAN REVERSE ROTATION SYSTEM OF HYDRAULIC FAN 10-34
COMPONENT PARTS OF COOLING SYSTEM 10-35
INDEX 00 INDEX AND FOREWORD
00-2 PC1250-11R, PC1250SP-11R
CONTROL SYSTEM 10-56
LAYOUT DRAWING OF CONTROL SYSTEM 10-56
MACHINE MONITOR SYSTEM 10-58
KomVision SYSTEM 10-59
KOMTRAX Plus SYSTEM 10-63
COMPONENT PARTS OF CONTROL SYSTEM 10-67
HYDRAULIC SYSTEM 10-112
LAYOUT DRAWING OF HYDRAULIC SYSTEM 10-112
OLSS 10-115
ENGINE AND PUMP COMBINED CONTROL SYSTEM 10-127
COMPONENT PARTS OF HYDRAULIC SYSTEM 10-131
WORK EQUIPMENT SYSTEM 10-209
LAYOUT DRAWING OF WORK EQUIPMENT SYSTEM 10-209
MACHINE PUSH-UP SYSTEM 10-215
HEAVY LIFT SYSTEM 10-217
BOOM SHOCKLESS CONTROL SYSTEM 10-220
PPC LOCK SYSTEM 10-222
WORK EQUIPMENT AND TRAVEL AUTOMATIC LOCK SYSTEM 10-223
COMPONENT PARTS OF WORK EQUIPMENT SYSTEM 10-225
SWING SYSTEM 10-237
LAYOUT DRAWING OF SWING SYSTEM 10-237
SWING CONTROL SYSTEM DIAGRAM 10-240
SWING PRIORITY SYSTEM DIAGRAM 10-244
SWING COMPENSATION SYSTEM DIAGRAM 10-247
COMPONENT PARTS OF SWING SYSTEM 10-248
TRAVEL SYSTEM 10-262
LAYOUT DRAWING OF TRAVEL SYSTEM 10-262
TRAVEL CONTROL SYSTEM DIAGRAM 10-266
COMPONENT PARTS OF TRAVEL SYSTEM 10-269
LIFTING SYSTEM 10-286
HYDRAULICALLY OPERATED STAIRWAY SYSTEM 10-286
COMPONENT PARTS OF LIFTING SYSTEM 10-289
UNDERCARRIAGE AND FRAME 10-292
LAYOUT DRAWING OF UNDERCARRIAGE 10-292
WORK EQUIPMENT 10-293
STRUCTURE OF WORK EQUIPMENT 10-293
FUNCTION OF WORK EQUIPMENT 10-294
WORK EQUIPMENT CLEARANCE ADJUSTMENT SHIM 10-295
BUCKET CLEARANCE ADJUSTMENT SHIM 10-296
CAB AND ITS ATTACHMENTS 10-297
CAB 10-297
CAB MOUNT 10-298
CAB TIPPING STOPPER 10-299
20 STANDARD VALUE TABLE 20-1
CONTENTS 20-2
STANDARD VALUE TABLE FOR ENGINE 20-3
STANDARD VALUE TABLE FOR ENGINE: PC1250-11R 20-3
STANDARD VALUE TABLE FOR ENGINE: PC1250SP-11R 20-8
STANDARD VALUE TABLE FOR MACHINE 20-13
STANDARD VALUE TABLE FOR MACHINE: PC1250-11R 20-13
STANDARD VALUE TABLE FOR MACHINE: PC1250SP-11R 20-27
MACHINE POSTURE AND PROCEDURE FOR MEASURING PERFORMANCE 20-41
30 TESTING AND ADJUSTING 30-1
CONTENTS 30-2
RELATED INFORMATION ON TESTING AND ADJUSTING 30-6
TOOLS FOR TESTING AND ADJUSTING 30-6
SKETCH OF TOOLS FOR TESTING AND ADJUSTING 30-16
ENGINE AND COOLING SYSTEM 30-17
00 INDEX AND FOREWORD INDEX
PC1250-11R, PC1250SP-11R 00-3
TEST ENGINE SPEED 30-17
TEST BOOST PRESSURE 30-20
TEST EXHAUST GAS TEMPERATURE 30-22
TEST EXHAUST GAS COLOR 30-24
TEST AND ADJUST VALVE CLEARANCE 30-28
TEST COMPRESSION PRESSURE 30-31
TEST BLOWBY PRESSURE 30-35
TEST ENGINE OIL PRESSURE 30-37
TEST FUEL PRESSURE 30-39
TEST FUEL RETURN RATE AND LEAKAGE 30-41
BLEED AIR FROM FUEL SYSTEM 30-46
TEST FUEL CIRCUIT FOR LEAKAGE 30-48
TEST SUPPLY PUMP 30-50
HANDLE CYLINDER CUT-OUT MODE OPERATION 30-53
TEST ALTERNATOR 30-54
HANDLE NO-INJECTION CRANKING OPERATION 30-55
WRITE INJECTOR COMPENSATION VALUE TO ENGINE CONTROLLER 30-56
POWER TRAIN 30-62
TEST SWING CIRCLE BEARING CLEARANCE 30-62
UNDERCARRIAGE AND FRAME 30-64
TEST SPROCKET WEAR 30-64
TEST AND ADJUST TRACK TENSION 30-65
HYDRAULIC SYSTEM 30-67
RELEASE REMAINING PRESSURE FROM HYDRAULIC SYSTEM 30-67
TEST AND ADJUST OIL PRESSURE IN WORK EQUIPMENT, SWING, AND TRAVEL CIRCUITS
30-72
TEST AND ADJUST OIL PRESSURE OF CONTROL CIRCUIT 30-86
TEST AND ADJUST PISTON PUMP CONTROL OIL PRESSURE 30-88
TEST SERVO PISTON STROKE 30-97
TEST OUTLET PRESSURE OF SOLENOID VALVE 30-99
TEST PPC VALVE OUTLET PRESSURE 30-104
TEST SWING PPC SHUTTLE VALVE OUTLET PRESSURE 30-106
ADJUST WORK EQUIPMENT AND SWING PPC VALVES 30-108
TEST TRAVEL DEVIATION 30-109
TEST COOLING FAN SPEED 30-110
TEST AFTERCOOLER FAN SPEED 30-111
TEST OIL PRESSURE IN FAN PUMP CIRCUIT 30-112
TEST AFTERCOOLER FAN PUMP CIRCUIT OIL PRESSURE 30-113
TEST FAN PUMP EPC ELECTRIC CURRENT 30-114
TEST FAN PUMP EPC SOLENOID VALVE OUTLET PRESSURE 30-115
TEST THE PARTS CAUSING HYDRAULIC DRIFT IN WORK EQUIPMENT 30-117
TEST OIL LEAKAGE 30-119
BLEED AIR FROM HYDRAULIC CIRCUIT 30-125
CAB AND ITS ATTACHMENTS 30-130
TEST CAB TIPPING STOPPER 30-130
METHOD FOR ADJUSTING MIRRORS 30-131
ELECTRICAL SYSTEM 30-138
SET AND OPERATE MACHINE MONITOR 30-138
START UP KOMTRAX TERMINAL 30-193
DEFAULT SETTING OF KOMTRAX Plus CONTROLLER 30-199
SETTING DEFAULT OF WIRELESS LAN MODEM 30-202
DOWNLOAD OF KOMTRAX Plus CONTROLLER DATA 30-204
ADJUST WHEN KOMTRAX Plus CONTROLLER IS REPLACED 30-207
ADJUST WHEN WIRELESS LAN MODEM IS REPLACED 30-210
ADJUST KomVision CAMERA ANGLE 30-213
ADJUST KomVision RELATED ITEMS 30-216
SET REGION OF Bluetooth® COMPATIBLE RADIO 30-235
HANDLE VOLTAGE CIRCUIT OF ENGINE CONTROLLER 30-237
INDEX 00 INDEX AND FOREWORD
00-4 PC1250-11R, PC1250SP-11R
HANDLE BATTERY DISCONNECT SWITCH 30-238
TEST DIODES 30-239
Pm CLINIC 30-240
Pm CLINIC SERVICE 30-240
PERFORMING QUICK Pm 30-271
40 TROUBLESHOOTING 40-1
CONTENTS 40-2
RELATED INFORMATION ON TROUBLESHOOTING 40-11
GENERAL TROUBLESHOOTING POINTS 40-11
SEQUENCE OF EVENTS IN TROUBLESHOOTING 40-12
CHECKS BEFORE TROUBLESHOOTING 40-14
INSPECTION PROCEDURE BEFORE TROUBLESHOOTING 40-16
TESTING IN ACCORDANCE WITH TESTING PROCEDURE 40-18
PREPARATION FOR TROUBLESHOOTING OF ELECTRICAL SYSTEM 40-41
PROCEDURE FOR TROUBLESHOOTING 40-47
SYMPTOM AND TROUBLESHOOTING NUMBERS 40-50
INFORMATION DESCRIBED IN TROUBLESHOOTING TABLE 40-54
TROUBLESHOOTING METHOD FOR OPEN CIRCUIT IN WIRING HARNESS OF PRESSURE SENSOR
SYSTEM 40-56
CONNECTOR LIST AND LAYOUT 40-59
CONNECTOR CONTACT IDENTIFICATION 40-76
T-BRANCH BOX AND T-BRANCH ADAPTER TABLE 40-116
FUSE LOCATION TABLE 40-122
FAILURE CODE TABLE 40-125
TROUBLESHOOTING BY FAILURE CODE (DISPLAY OF CODE) 40-138
FAILURE CODE [879AKA] 40-138
FAILURE CODE [879AKB] 40-139
FAILURE CODE [879BKA] 40-140
FAILURE CODE [879BKB] 40-142
FAILURE CODE [879CKA] 40-144
FAILURE CODE [879CKB] 40-145
FAILURE CODE [879DKZ] 40-146
FAILURE CODE [879EMC] 40-148
FAILURE CODE [879FMC] 40-149
FAILURE CODE [879GKX] 40-150
FAILURE CODE [8800L8] 40-152
FAILURE CODE [8800ZG] 40-153
FAILURE CODE [989L00] 40-154
FAILURE CODE [989M00] 40-155
FAILURE CODE [989N00] 40-156
FAILURE CODE [A900FR] 40-157
FAILURE CODE [A900N6] 40-158
FAILURE CODE [A900NY] 40-159
FAILURE CODE [AA10NX] 40-160
FAILURE CODE [AB00KE] 40-162
FAILURE CODE [B@BAZG] 40-164
FAILURE CODE [B@BAZK] 40-165
FAILURE CODE [B@BCNS] 40-167
FAILURE CODE [B@BCZK] 40-168
FAILURE CODE [B@CBNS] 40-170
FAILURE CODE [B@BCQA] 40-172
FAILURE CODE [B@HAMB] 40-174
FAILURE CODE [B@HANS] 40-175
FAILURE CODE [CA115] 40-176
FAILURE CODE [CA122] 40-180
FAILURE CODE [CA123] 40-182
FAILURE CODE [CA131] 40-184
FAILURE CODE [CA132] 40-186
00 INDEX AND FOREWORD INDEX
PC1250-11R, PC1250SP-11R 00-5
FAILURE CODE [CA135] 40-188
FAILURE CODE [CA141] 40-190
FAILURE CODE [CA144] 40-192
FAILURE CODE [CA145] 40-194
FAILURE CODE [CA153] 40-196
FAILURE CODE [CA154] 40-199
FAILURE CODE [CA212] 40-201
FAILURE CODE [CA213] 40-203
FAILURE CODE [CA221] 40-205
FAILURE CODE [CA222] 40-207
FAILURE CODE [CA234] 40-209
FAILURE CODE [CA238] 40-210
FAILURE CODE [CA239] 40-212
FAILURE CODE [CA271] 40-214
FAILURE CODE [CA272] 40-216
FAILURE CODE [CA273] 40-217
FAILURE CODE [CA274] 40-219
FAILURE CODE [CA322] 40-220
FAILURE CODE [CA323] 40-222
FAILURE CODE [CA324] 40-224
FAILURE CODE [CA325] 40-226
FAILURE CODE [CA331] 40-228
FAILURE CODE [CA332] 40-230
FAILURE CODE [CA343] 40-232
FAILURE CODE [CA351] 40-234
FAILURE CODE [CA352] 40-236
FAILURE CODE [CA386] 40-238
FAILURE CODE [CA441] 40-240
FAILURE CODE [CA442] 40-242
FAILURE CODE [CA449] 40-244
FAILURE CODE [CA451] 40-245
FAILURE CODE [CA452] 40-247
FAILURE CODE [CA515] 40-249
FAILURE CODE [CA516] 40-250
FAILURE CODE [CA553] 40-251
FAILURE CODE [CA559] 40-252
FAILURE CODE [CA689] 40-257
FAILURE CODE [CA691] 40-259
FAILURE CODE [CA692] 40-261
FAILURE CODE [CA697] 40-263
FAILURE CODE [CA698] 40-264
FAILURE CODE [CA731] 40-265
FAILURE CODE [CA778] 40-269
FAILURE CODE [CA1117] 40-271
FAILURE CODE [CA1135] 40-273
FAILURE CODE [CA1257] 40-276
FAILURE CODE [CA1843] 40-277
FAILURE CODE [CA1844] 40-279
FAILURE CODE [CA1942] 40-281
FAILURE CODE [CA2185] 40-283
FAILURE CODE [CA2186] 40-284
FAILURE CODE [CA2249] 40-286
FAILURE CODE [CA2555] 40-291
FAILURE CODE [CA2556] 40-293
FAILURE CODE [CA2765] 40-295
FAILURE CODE [CA4952] 40-296
FAILURE CODE [CB115] 40-298
FAILURE CODE [CB238] 40-301
INDEX 00 INDEX AND FOREWORD
00-6 PC1250-11R, PC1250SP-11R
FAILURE CODE [CB239] 40-303
FAILURE CODE [CB271] 40-305
FAILURE CODE [CB272] 40-307
FAILURE CODE [CB273] 40-308
FAILURE CODE [CB274] 40-310
FAILURE CODE [CB343] 40-311
FAILURE CODE [CB352] 40-313
FAILURE CODE [CB386] 40-315
FAILURE CODE [CB441] 40-317
FAILURE CODE [CB442] 40-319
FAILURE CODE [CB689] 40-321
FAILURE CODE [CB697] 40-323
FAILURE CODE [CB698] 40-324
FAILURE CODE [CB731] 40-325
FAILURE CODE [CB778] 40-329
FAILURE CODE [CB1117] 40-331
FAILURE CODE [CB1257] 40-333
FAILURE CODE [CB4952] 40-334
FAILURE CODE [D110KB] 40-336
FAILURE CODE [D163KB] 40-338
FAILURE CODE [D195KA] 40-340
FAILURE CODE [D195KB] 40-342
FAILURE CODE [D19JKZ] 40-344
FAILURE CODE [D1F0KA] 40-346
FAILURE CODE [D1F0KB] 40-348
FAILURE CODE [D1F0KY] 40-350
FAILURE CODE [D1R1KA] 40-351
FAILURE CODE [D1R1KB] 40-353
FAILURE CODE [D1R1KY] 40-355
FAILURE CODE [D862KA] 40-356
FAILURE CODE [DA20MC] 40-357
FAILURE CODE [DA22KK] 40-358
FAILURE CODE [DA25KP] 40-360
FAILURE CODE [DA26KP] 40-362
FAILURE CODE [DA29KQ] 40-364
FAILURE CODE [DA2LKA] 40-366
FAILURE CODE [DA2LKB] 40-368
FAILURE CODE [DA2QKR] 40-370
FAILURE CODE [DA2RKR] 40-375
FAILURE CODE [DAF0KM] 40-380
FAILURE CODE [DAF0MB] 40-381
FAILURE CODE [DAF0MC] 40-382
FAILURE CODE [DAF8KB] 40-383
FAILURE CODE [DAF9KQ] 40-384
FAILURE CODE [DAFGMC] 40-385
FAILURE CODE [DAFLKA] 40-386
FAILURE CODE [DAFLKB] 40-389
FAILURE CODE [DAFQKR] 40-391
FAILURE CODE [DAZ9KQ] 40-395
FAILURE CODE [DAZQKR] 40-396
FAILURE CODE [DB2QKR] 40-399
FAILURE CODE [DB2RKR] 40-406
FAILURE CODE [DBP0KM] 40-412
FAILURE CODE [DBP0KT] 40-413
FAILURE CODE [DBP5KB] 40-414
FAILURE CODE [DBP5KY] 40-416
FAILURE CODE [DBPQKR] 40-418
FAILURE CODE [DBV0MC] 40-423
00 INDEX AND FOREWORD INDEX
PC1250-11R, PC1250SP-11R 00-7
FAILURE CODE [DBV1KK] 40-424
FAILURE CODE [DBV5KB] 40-426
FAILURE CODE [DBV6KB] 40-430
FAILURE CODE [DBVLKA] 40-432
FAILURE CODE [DBVLKB] 40-434
FAILURE CODE [DBVQKR] 40-436
FAILURE CODE [DBVRKR] 40-440
FAILURE CODE [DBVVKR] 40-444
FAILURE CODE [DBVWKR] 40-445
FAILURE CODE [DDNRKA] 40-446
FAILURE CODE [DDNRKY] 40-448
FAILURE CODE [DDNS00] 40-450
FAILURE CODE [DDXAL4] 40-452
FAILURE CODE [DGE5KB] 40-454
FAILURE CODE [DGH2KA] 40-455
FAILURE CODE [DGH2KB] 40-457
FAILURE CODE [DGT3KB] 40-459
FAILURE CODE [DGT4KA] 40-461
FAILURE CODE [DGT4KB] 40-463
FAILURE CODE [DGT5KA] 40-465
FAILURE CODE [DGT5KB] 40-467
FAILURE CODE [DHA4KA] 40-469
FAILURE CODE [DHPAMA] 40-471
FAILURE CODE [DHPAZL] 40-473
FAILURE CODE [DHPBMA] 40-474
FAILURE CODE [DHPBZL] 40-476
FAILURE CODE [DHPGMA] 40-477
FAILURE CODE [DHPGZL] 40-479
FAILURE CODE [DHPSMA] 40-480
FAILURE CODE [DHPZMA] 40-482
FAILURE CODE [DHS3MA] 40-484
FAILURE CODE [DHS4MA] 40-487
FAILURE CODE [DHS8MA] 40-490
FAILURE CODE [DHS9MA] 40-493
FAILURE CODE [DHSAMA] 40-496
FAILURE CODE [DHSBMA] 40-499
FAILURE CODE [DHSCMA] 40-502
FAILURE CODE [DHSDMA] 40-505
FAILURE CODE [DHSFMA] 40-508
FAILURE CODE [DHSGMA] 40-511
FAILURE CODE [DHSHMA] 40-514
FAILURE CODE [DHSJMA] 40-517
FAILURE CODE [DKR2KA] 40-520
FAILURE CODE [DKR2KB] 40-522
FAILURE CODE [DKR2NX] 40-524
FAILURE CODE [DKR3KA] 40-526
FAILURE CODE [DKR3KB] 40-528
FAILURE CODE [DKR3NX] 40-530
FAILURE CODE [DKULKA] 40-532
FAILURE CODE [DKULKB] 40-534
FAILURE CODE [DKULKY] 40-536
FAILURE CODE [DLM3KA] 40-538
FAILURE CODE [DLM3KB] 40-540
FAILURE CODE [DLM3MB] 40-542
FAILURE CODE [DMU6KB] 40-543
FAILURE CODE [DR10KA] 40-545
FAILURE CODE [DR12KA] 40-548
FAILURE CODE [DR20KA] 40-550
INDEX 00 INDEX AND FOREWORD
00-8 PC1250-11R, PC1250SP-11R
FAILURE CODE [DR21KX] 40-552
FAILURE CODE [DR30KA] 40-554
FAILURE CODE [DR31KX] 40-556
FAILURE CODE [DR40KA] 40-558
FAILURE CODE [DUMBKA] 40-560
FAILURE CODE [DUMBKB] 40-563
FAILURE CODE [DV20KB] 40-565
FAILURE CODE [DW41KA] 40-567
FAILURE CODE [DW41KB] 40-569
FAILURE CODE [DW41KY] 40-571
FAILURE CODE [DW43KA] 40-572
FAILURE CODE [DW43KB] 40-574
FAILURE CODE [DW43KY] 40-575
FAILURE CODE [DW45KA] 40-576
FAILURE CODE [DW45KB] 40-579
FAILURE CODE [DW45KY] 40-582
FAILURE CODE [DW48KA] 40-584
FAILURE CODE [DW48KB] 40-586
FAILURE CODE [DW48KY] 40-588
FAILURE CODE [DW4CKY] 40-589
FAILURE CODE [DW7BKA] 40-591
FAILURE CODE [DW7BKB] 40-593
FAILURE CODE [DW7BKY] 40-595
FAILURE CODE [DW91KA] 40-596
FAILURE CODE [DW91KB] 40-598
FAILURE CODE [DW91KY] 40-599
FAILURE CODE [DWK0KA] 40-600
FAILURE CODE [DWK0KB] 40-602
FAILURE CODE [DWK0KY] 40-604
FAILURE CODE [DWK2KA] 40-605
FAILURE CODE [DWK2KB] 40-607
FAILURE CODE [DWK2KY] 40-609
FAILURE CODE [DWK8KA] 40-610
FAILURE CODE [DWK8KB] 40-612
FAILURE CODE [DWK8KY] 40-614
FAILURE CODE [DWNRKA] 40-615
FAILURE CODE [DWNRKB] 40-617
FAILURE CODE [DWNRKY] 40-619
FAILURE CODE [DX16KA] 40-620
FAILURE CODE [DX16KB] 40-622
FAILURE CODE [DXA0KA] 40-624
FAILURE CODE [DXA0KB] 40-626
FAILURE CODE[DXAXKA] 40-628
FAILURE CODE [DXAXKB] 40-630
FAILURE CODE [DY20KA] 40-632
FAILURE CODE [DY20KA] 40-634
FAILURE CODE [DY20MA] 40-637
FAILURE CODE [DY20MA] 40-639
FAILURE CODE [DY2CKA] 40-642
FAILURE CODE [DY2CKB] 40-644
FAILURE CODE [DY2CKY] 40-646
FAILURE CODE [DY2DKB] 40-648
FAILURE CODE [DY2DKB] 40-650
FAILURE CODE [DY2EKB] 40-653
FAILURE CODE [DY2EKB] 40-655
FAILURE CODE [DY2FMA] 40-658
FAILURE CODE [F7FQKR] 40-660
FAILURE CODE [F7G0MC] 40-664
00 INDEX AND FOREWORD INDEX
PC1250-11R, PC1250SP-11R 00-9
FAILURE CODE [F@BYNR] 40-665
FAILURE CODE [F@BYNS] 40-666
FAILURE CODE [F@BZNR] 40-667
FAILURE CODE [F@BZNS] 40-668
FAILURE CODE [F@HCZL] 40-669
FAILURE CODE [J100KA] 40-670
FAILURE CODE [J100KB] 40-672
FAILURE CODE [J100L6] 40-674
FAILURE CODE [J190KA] 40-675
FAILURE CODE [J190KB] 40-677
FAILURE CODE [J190L6] 40-679
FAILURE CODE [LA10ZL] 40-680
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E-MODE) 40-681
E-1 ENGINE DOES NOT START (ENGINE DOES NOT CRANK) 40-681
E-2 MANUAL PREHEATING SYSTEM DOES NOT WORK 40-688
E-3 AUTOMATIC PREHEATING SYSTEM DOES NOT WORK 40-691
E-4 WHILE PREHEATING IS WORKING, PREHEATING MONITOR DOES NOT LIGHT UP 40-693
E-5 WHEN STARTING SWITCH IS TURNED TO ON POSITION, MACHINE MONITOR DISPLAYS
NOTHING 40-695
E-6 WHILE STARTING SWITCH IS TURNED TO ON POSITION (WITH ENGINE STOPPED), ENGINE
OIL LEVEL MONITOR LIGHTS UP IN YELLOW 40-698
E-7 WHILE STARTING SWITCH IS TURNED TO ON POSITION (WITH ENGINE STOPPED), RADIATOR
COOLANT LEVEL MONITOR LIGHTS UP IN YELLOW 40-699
E-8 ENGINE COOLANT TEMPERATURE MONITOR LIGHTS UP IN WHITE WHILE ENGINE IS RUNNING
40-700
E-9 HYDRAULIC OIL TEMPERATURE MONITOR LIGHTS UP IN WHITE WHILE ENGINE IS RUNNING
40-701
E-10 AIR CLEANER CLOGGING MONITOR LIGHTS UP IN YELLOW WHILE ENGINE IS RUNNING
40-702
E-11 CHARGE LEVEL MONITOR LIGHTS UP IN RED WHILE ENGINE IS RUNNING 40-703
E-12 FUEL LEVEL MONITOR LIGHTS UP IN RED WHILE ENGINE IS RUNNING 40-704
E-13 ENGINE COOLANT TEMPERATURE MONITOR LIGHTS UP IN RED WHILE ENGINE IS RUNNING
40-705
E-14 ENGINE OIL PRESSURE MONITOR LIGHTS UP IN RED WHILE ENGINE IS RUNNING 40-706
E-15 HYDRAULIC OIL TEMPERATURE MONITOR LIGHTS UP IN RED WHILE ENGINE IS RUNNING
40-707
E-16 FUEL GAUGE DISPLAY DOES NOT MOVE FROM MINIMUM OR MAXIMUM 40-708
E-17 DISPLAY OF FUEL GAUGE DIFFERS FROM ACTUAL FUEL LEVEL 40-710
E-18 ENGINE COOLANT TEMPERATURE GAUGE DISPLAY DOES NOT MOVE FROM MINIMUM
OR MAXIMUM 40-711
E-19 DISPLAY OF ENGINE COOLANT TEMPERATURE GAUGE DIFFERS FROM ACTUAL COOLANT
TEMPERATURE 40-712
E-20 HYDRAULIC OIL TEMPERATURE GAUGE DISPLAY DOES NOT MOVE FROM MINIMUM OR
MAXIMUM 40-713
E-21 DISPLAY OF HYDRAULIC OIL TEMPERATURE GAUGE DIFFERS FROM ACTUAL OIL TEMPERATURE
40-715
E-22 SOME AREAS OF MACHINE MONITOR SCREEN ARE NOT DISPLAYED 40-716
E-23 FUNCTION SWITCH DOES NOT OPERATE 40-717
E-24 AUTOMATIC WARM-UP SYSTEM DOES NOT WORK (IN COLD WEATHER) 40-718
E-25 WHEN AUTO-DECELERATOR SWITCH IS OPERATED, AUTO-DECELERATOR MONITOR
DOES NOT LIGHT UP OR DOES NOT GO OFF 40-719
E-26 AUTO-DECELERATOR IS NOT OPERATED OR CANCELED WITH LEVER 40-720
E-27 WHEN WORKING MODE SWITCH IS OPERATED, WORKING MODE SELECTION SCREEN IS
NOT DISPLAYED 40-721
E-28 WHEN WORKING MODE IS CHANGED, SETTING OF ENGINE AND HYDRAULIC PUMP IS
NOT CHANGED 40-722
E-29 WHEN TRAVEL SPEED SWITCH IS OPERATED, TRAVEL SPEED MONITOR DOES NOT
CHANGE 40-723
INDEX 00 INDEX AND FOREWORD
00-10 PC1250-11R, PC1250SP-11R
E-30 WHEN TRAVEL SPEED SELECTION IS CHANGED, ACTUAL TRAVEL SPEED DOES NOT
CHANGE 40-724
E-31 ALARM BUZZER CANNOT BE CANCELED 40-725
E-32 SERVICE METER IS NOT DISPLAYED, WHILE STARTING SWITCH IS IN OFF POSITION
40-726
E-33 SERVICE MODE CANNOT BE SELECTED 40-727
E-34 ALL OF WORK EQUIPMENTS, SWING, AND TRAVEL MECHANISM DO NOT MOVE 40-728
E-35 ALL OF WORK EQUIPMENT, SWING, AND TRAVEL MECHANISM DO NOT LOCK 40-731
E-36 WHEN SWING BRAKE CANCEL SWITCH IS SET TO CANCEL POSITION, MACHINE CANNOT
SWING 40-733
E-37 WHEN SWING BRAKE CANCEL SWITCH IS SET TO NORMAL POSITION, SWING HOLDING
BRAKE DOES NOT OPERATE 40-736
E-38 ALARM DOES NOT SOUND DURING TRAVEL 40-738
E-39 ALARM DOES NOT STOP SOUNDING WHILE MACHINE IS STOPPED 40-740
E-40 HORN DOES NOT MAKE SOUND 40-741
E-41 HORN DOES NOT STOP SOUNDING 40-744
E-42 WHEN WIPER SWITCH IS OPERATED, WIPER MONITOR DOES NOT LIGHT UP OR GO OFF
40-746
E-43 WIPER DOES NOT OPERATE WHEN WIPER SWITCH IS OPERATED (SINGLE WIPER SPECIFICATION)
40-747
E-44 WIPER DOES NOT OPERATE WHEN WIPER SWITCH IS OPERATED (DOUBLE WIPER
SPECIFICATION) 40-749
E-45 FUEL FEED PUMP DOES NOT OPERATE OR STOP AUTOMATICALLY 40-751
E-46 WHEN WINDOW WASHER SWITCH IS OPERATED, WINDOW WASHER DOES NOT OPERATE
40-754
E-47 BOOM RAISE INDICATOR IS NOT DISPLAYED PROPERLY WITH MONITORING FUNCTION
40-755
E-48 BOOM LOWER INDICATOR IS NOT DISPLAYED PROPERLY WITH MONITORING FUNCTION
40-756
E-49 ARM OUT INDICATOR IS NOT DISPLAYED PROPERLY WITH MONITORING FUNCTION
40-757
E-50 ARM IN INDICATOR IS NOT DISPLAYED PROPERLY WITH MONITORING FUNCTION 40-758
E-51 BUCKET DUMP INDICATOR IS NOT DISPLAYED PROPERLY WITH MONITORING FUNCTION
40-759
E-52 BUCKET CURL INDICATOR IS NOT DISPLAYED PROPERLY WITH MONITORING FUNCTION
40-760
E-53 SWING INDICATOR IS NOT DISPLAYED PROPERLY WITH MONITORING FUNCTION 40-761
E-54 TRAVEL INDICATOR IS NOT DISPLAYED PROPERLY WITH MONITORING FUNCTION 40-762
E-55 KOMTRAX SYSTEM DOES NOT OPERATE NORMALLY 40-763
E-56 MACHINE PUSH-UP FUNCTION CANNOT BE CANCELED 40-764
E-57 MACHINE PUSH-UP FUNCTION DOES NOT OPERATE 40-766
E-58 STEP LIGHT DOES NOT LIGHT UP 40-767
E-59 STEP LIGHT DOES NOT GO OUT 40-770
E-60 BOOM SHOCKLESS FUNCTION CANNOT BE CANCELED 40-772
E-61 BOOM SHOCKLESS FUNCTION DOES NOT WORK 40-774
TROUBLESHOOTING FOR HYDRAULIC AND MECHANICAL SYSTEMS (H MODE) 40-775
H-1 ALL WORK EQUIPMENT, TRAVEL, SWING SPEED OR POWER IS LOW 40-775
H-2 ENGINE SPEED DROPS SIGNIFICANTLY OR ENGINE STALLS 40-777
H-3 ALL WORK EQUIPMENTS, SWING AND TRAVEL DO NOT WORK 40-778
H-4 UNUSUAL NOISE IS HEARD FROM AROUND WORK EQUIPMENT PUMP 40-780
H-5 BOOM SPEED OR POWER IS LOW IN NORMAL MODE 40-781
H-6 BOOM RAISE SPEED OR POWER IS LOW IN HEAVY LIFT MODE 40-782
H-7 BOOM LOWER SPEED OR POWER IS LOW IN MACHINE PUSH UP MODE 40-783
H-8 ARM SPEED OR POWER IS LOW 40-784
H-9 BUCKET SPEED OR POWER IS LOW 40-785
H-10 BOOM DOES NOT OPERATE 40-786
H-11 ARM DOES NOT OPERATE 40-787
H-12 BUCKET DOES NOT OPERATE 40-788
00 INDEX AND FOREWORD INDEX
PC1250-11R, PC1250SP-11R 00-11
H-13 HYDRAULIC DRIFT OF BOOM IS LARGE 40-789
H-14 HYDRAULIC DRIFT OF ARM IS LARGE 40-790
H-15 HYDRAULIC DRIFT OF BUCKET IS LARGE 40-791
H-16 TIME LAG OF BOOM IS LARGE 40-792
H-17 TIME LAG OF ARM IS LARGE 40-793
H-18 TIME LAG OF BUCKET IS LARGE 40-794
H-19 BOOM SHOCKLESS FUNCTION DOES NOT WORK OR CANNOT BE RELEASED 40-795
H-20 MACHINE UNINTENTIONALLY TURNS TO ONE SIDE WHEN MACHINE TRAVELS (IT TURNS
IN THE SAME DIRECTION WHEN TRAVELING FORWARD AND REVERSE) 40-796
H-21 MACHINE UNINTENTIONALLY TURNS TO ONE SIDE WHEN MACHINE TRAVELS (IT TURNS
IN THE DIFFERENT DIRECTIONS WHEN TRAVELING FORWARD AND REVERSE) 40-798
H-22 ONLY WHEN OPERATING THE TRAVEL LEVER FULLY, TRAVEL DEVIATION IS LARGE AT
START OF TRAVELING 40-799
H-23 REGARDLESS OF THE STROKE OF THE TRAVEL LEVER, TRAVEL DEVIATION IS LARGE AT
START OF TRAVELING 40-800
H-24 TRAVEL DEVIATION IS LARGE AT COMBINED OPERATION 40-801
H-25 TRAVEL SPEED OR POWER IS LOW 40-802
H-26 ONLY THE ONE SIDE TRACK CAN OPERATE (MACHINE DOES NOT TRAVEL EITHER FORWARD
OR REVERSE) 40-803
H-27 ONLY THE ONE SIDE TRACK CAN OPERATE (MACHINE CAN TRAVEL ONLY FORWARD OR
REVERSE) 40-804
H-28 TRAVEL SPEED DOES NOT CHANGE, OR TRAVEL SPEED IS TOO SLOW OR FAST 40-805
H-29 UPPER STRUCTURE DOES NOT SWING BOTH TO THE RIGHT AND LEFT 40-806
H-30 SWINGS ONLY IN ONE DIRECTION 40-807
H-31 SWING ACCELERATION OR SWING SPEED IS LOW IN BOTH DIRECTIONS (RIGHT AND
LEFT) 40-808
H-32 SWING ACCELERATION PERFORMANCE IS POOR OR SWING SPEED IS SLOW IN ONLY
ONE DIRECTION 40-809
H-33 IN COMBINED OPERATION OF WORK EQUIPMENT, SWING SPEED OR POWER IS LOW
40-810
H-34 WHILE COMBINED OPERATION WITH BOOM IN SWING PRIORITY MODE, SWING SPEED IS
LOW OR SWING ACCELERATION PERFORMANCE IS POOR 40-811
H-35 UPPER STRUCTURE OVERRUNS EXCESSIVELY WHEN IT STOPS SWINGING (BOTH
RIGHT AND LEFT) 40-812
H-36 UPPER STRUCTURE OVERRUNS EXCESSIVELY WHEN IT STOPS SWINGING (ONLY ONE
DIRECTION EITHER RIGHT OR LEFT) 40-813
H-37 SHOCK IS LARGE WHEN UPPER STRUCTURE STOPS SWINGING (BOTH RIGHT AND
LEFT) 40-814
H-38 SHOCK IS LARGE WHEN UPPER STRUCTURE STOPS SWINGING 40-815
H-39 LARGE UNUSUAL NOISE IS HEARD WHEN UPPER STRUCTURE STOPS SWINGING (BOTH
RIGHT AND LEFT) 40-816
H-40 LARGE UNUSUAL NOISE IS HEARD WHEN UPPER STRUCTURE STOPS SWINGING IN ONLY
ONE DIRECTION 40-817
H-41 SWING DRIFT ON A SLOPE IS LARGE 40-818
H-42 FAN SPEED IS ABNORMAL (SUCH AS EXCESSIVE NOISE OR VIBRATION OF FAN, OR
OVERHEATING) 40-819
TROUBLESHOOTING OF ENGINE (S-MODE) 40-820
INFORMATION MENTIONED IN TROUBLESHOOTING TABLE (S MODE) 40-820
S-1 ENGINE DOES NOT CRANK WHEN STARTING SWITCH IS TURNED TO START POSITION
40-821
S-2 ENGINE CRANKS BUT NO EXHAUST SMOKE COMES OUT 40-822
S-3 FUEL IS BEING INJECTED BUT ENGINE DOES NOT START (MISFIRING: ENGINE CRANKS
BUT DOES NOT START) 40-823
S-4 ENGINE STARTABILITY IS UNSATISFACTORY 40-824
S-5 ENGINE DOES NOT PICK UP SMOOTHLY 40-826
S-6 ENGINE STOPS DURING OPERATION 40-828
S-7 ENGINE RUNS ROUGH OR IS NOT STABLE 40-830
S-8 ENGINE LACKS POWER 40-831
INDEX 00 INDEX AND FOREWORD
00-12 PC1250-11R, PC1250SP-11R
S-9 ENGINE OIL CONSUMPTION IS EXCESSIVE 40-833
S-10 OIL BECOMES CONTAMINATED QUICKLY 40-834
S-11 FUEL CONSUMPTION IS EXCESSIVE 40-835
S-12 OIL MIXES INTO COOLANT (OR COOLANT SPURTS BACK AND COOLANT LEVEL DOES
DOWN) 40-836
S-13 ENGINE OIL PRESSURE FALLS 40-837
S-14 FUEL MIXES INTO ENGINE OIL 40-838
S-15 WATER MIXES INTO ENGINE OIL (MILKY) 40-839
S-16 COOLANT TEMPERATURE RISES TOO HIGH (OVERHEAT) 40-840
S-17 THERE IS AN UNUSUAL NOISE 40-841
S-18 VIBRATION IS EXCESSIVE 40-842
S-19 AIR CANNOT BE BLED FROM FUEL CIRCUIT 40-843
50 DISASSEMBLY AND ASSEMBLY 50-1
CONTENTS 50-2
ABBREVIATION LIST 50-7
RELATED INFORMATION ON DISASSEMBLY AND ASSEMBLY 50-13
HOW TO READ THIS MANUAL 50-13
COATING MATERIALS LIST 50-15
SPECIAL TOOLS LIST 50-20
SKETCHES OF SPECIAL TOOLS 50-39
ENGINE AND COOLING SYSTEM 50-47
REMOVE AND INSTALL SUPPLY PUMP ASSEMBLY 50-47
REMOVE AND INSTALL INJECTOR ASSEMBLY 50-72
REMOVE AND INSTALL CYLINDER HEAD ASSEMBLY 50-120
REMOVE AND INSTALL STARTING MOTOR ASSEMBLY 50-202
REMOVE AND INSTALL ALTERNATOR BELT 50-204
REMOVE AND INSTALL RADIATOR ASSEMBLY 50-207
REMOVE AND INSTALL HYDRAULIC OIL COOLER ASSEMBLY 50-216
REMOVE AND INSTALL AFTERCOOLER ASSEMBLY 50-227
REMOVE AND INSTALL COOLING FAN MOTOR ASSEMBLY 50-239
REMOVE AND INSTALL ENGINE, PTO, AND HYDRAULIC PUMP ASSEMBLY 50-264
REMOVE AND INSTALL ENGINE FRONT OIL SEAL 50-297
REMOVE AND INSTALL ENGINE REAR OIL SEAL 50-304
REMOVE AND INSTALL FUEL COOLER ASSEMBLY 50-309
REMOVE AND INSTALL ENGINE HOOD ASSEMBLY 50-312
REMOVE AND INSTALL FUEL TANK ASSEMBLY 50-323
REMOVE AND INSTALL MUFFLER ASSEMBLY 50-333
REMOVE AND INSTALL BELLOWS PIPE ASSEMBLY 50-342
REMOVE AND INSTALL AIR CLEANER ASSEMBLY 50-350
REMOVE AND INSTALL AIR CONDITIONER COMPRESSOR ASSEMBLY 50-352
REMOVE AND INSTALL AIR CONDITIONER CONDENSER ASSEMBLY 50-355
POWER TRAIN 50-359
DISASSEMBLE AND ASSEMBLE PTO ASSEMBLY 50-359
REMOVE AND INSTALL PTO ASSEMBLY 50-365
REMOVE AND INSTALL TRAVEL MOTOR AND FINAL DRIVE ASSEMBLY 50-370
DISASSEMBLE AND ASSEMBLE FINAL DRIVE ASSEMBLY 50-372
REMOVE AND INSTALL SWING MOTOR AND SWING MACHINERY ASSEMBLY 50-385
DISASSEMBLE AND ASSEMBLE SWING MACHINERY ASSEMBLY 50-390
REMOVE AND INSTALL SWING CIRCLE ASSEMBLY 50-400
UNDERCARRIAGE AND FRAME 50-402
REMOVE AND INSTALL IDLER ASSEMBLY 50-402
DISASSEMBLE AND ASSEMBLE RECOIL SPRING 50-404
REMOVE AND INSTALL TRACK ROLLER ASSEMBLY 50-406
REMOVE AND INSTALL CARRIER ROLLER ASSEMBLY 50-409
DISASSEMBLE AND ASSEMBLE ONE TRACK LINK ASSEMBLY IN FIELD 50-411
SEPARATION AND CONNECTION OF TRACK ASSEMBLY 50-417
DISASSEMBLE AND ASSEMBLE IDLER ASSEMBLY 50-420
DISASSEMBLE AND ASSEMBLE AIDLER ADJUSTMENT CYLINDER ASSEMBLY 50-425
00 INDEX AND FOREWORD INDEX
PC1250-11R, PC1250SP-11R 00-13
DISASSEMBLE AND ASSEMBLE TRACK ROLLER ASSEMBLY 50-427
DISASSEMBLEAND ASSEMBLE CARRIER ROLLER ASSEMBLY 50-431
REMOVE AND INSTALL REVOLVING FRAME ASSEMBLY 50-434
REMOVE AND INSTALL COUNTERWEIGHT ASSEMBLY 50-437
HYDRAULIC SYSTEM 50-441
REMOVE AND INSTALL CENTER SWIVEL JOINT ASSEMBLY 50-441
DISASSEMBLE AND ASSEMBLE CENTER SWIVEL JOINT ASSEMBLY 50-444
REMOVE AND INSTALL HYDRAULIC TANK ASSEMBLY 50-447
REMOVE AND INSTALL HYDRAULIC PUMP ASSEMBLY 50-456
REMOVE AND INSTALL CONTROL VALVE ASSEMBLY 50-477
REMOVE AND INSTALL SWING MOTOR ASSEMBLY 50-489
DISASSEMBLE AND ASSEMBLE WORK EQUIPMENT PPC VALVE ASSEMBLY 50-492
DISASSEMBLE AND ASSEMBLE TRAVEL PPC VALVE ASSEMBLY 50-495
DISASSEMBLE AND ASSEMBLE GREASE GUN ASSEMBLY 50-498
WORK EQUIPMENT 50-499
REMOVE AND INSTALL BUCKET CYLINDER ASSEMBLY 50-499
REMOVE AND INSTALL BUCKET CYLINDER ASSEMBLY (LOADING SHOVEL SPECIFICATION)
50-502
REMOVE AND INSTALL ARM CYLINDER ASSEMBLY 50-505
REMOVE AND INSTALL ARM CYLINDER ASSEMBLY (LOADING SHOVEL SPECIFICATION) 50-509
REMOVE AND INSTALL BOOM CYLINDER ASSEMBLY 50-513
REMOVE AND INSTALL BOOM CYLINDER ASSEMBLY (LOADING SHOVEL SPECIFICATION)
50-516
REMOVE AND INSTALL BUCKET ASSEMBLY 50-520
REMOVE AND INSTALL BUCKET ASSEMBLY (LOADING SHOVEL SPECIFICATION) 50-524
REMOVE AND INSTALL ARM ASSEMBLY 50-527
REMOVE AND INSTALL ARM ASSEMBLY (LOADING SHOVEL SPECIFICATION) 50-530
REMOVE AND INSTALL BOOM ASSEMBLY 50-533
REMOVE AND INSTALL BOOM ASSEMBLY (LOADING SHOVEL SPECIFICATION) 50-537
DISASSEMBLE AND ASSEMBLE WORK EQUIPMENT CYLINDER ASSEMBLY 50-541
DISASSEMBLE AND ASSEMBLE BOTTOM DUMP CYLINDER ASSEMBLY (LOADING SHOVEL
SPECIFICATION) 50-549
CAB AND ITS ATTACHMENTS 50-560
REMOVE AND INSTALL TOP GUARD ASSEMBLY 50-560
REMOVE AND INSTALL OPERATOR’S CAB ASSEMBLY 50-565
REMOVE AND INSTALL OPERATOR CAB GLASS (ADHERED GLASS) 50-584
REMOVE AND INSTALL FRONT WINDOW ASSEMBLY 50-596
REMOVE AND INSTALL FLOOR FRAME ASSEMBLY 50-605
REMOVE AND INSTALL AIR CONDITIONER UNIT ASSEMBLY 50-618
REMOVE AND INSTALL OPERATOR’S SEAT 50-630
REMOVE AND INSTALL SEAT BELT 50-635
REMOVE AND INSTALL FRONT WIPER ASSEMBLY 50-637
ELECTRICAL SYSTEM 50-651
REMOVE AND INSTALL ENGINE CONTROLLER ASSEMBLY 50-651
REMOVE AND INSTALL PUMP CONTROLLER ASSEMBLY 50-656
REMOVE AND INSTALL KomVision CONTROLLER ASSEMBLY 50-661
REMOVE AND INSTALL MACHINE MONITOR ASSEMBLY 50-664
REMOVE AND INSTALL CRANKCASE PRESSURE SENSOR 50-670
REMOVE AND INSTALL KomVision CAMERA 50-673
REMOVE AND INSTALL KOMTRAX TERMINAL ASSEMBLY 50-676
REMOVE AND INSTALL KOMTRAX Plus CONTROLLER ASSEMBLY 50-680
REMOVE AND INSTALL WIRELESS LAN UNIT ASSEMBLY 50-684
60 MAINTENANCE STANDARD 60-1
CONTENTS 60-2
ENGINE AND COOLING SYSTEM 60-3
MAINTENANCE STANDARD OF ENGINE MOUNT 60-3
MAINTENANCE STANDARD FOR PTO 60-4
MAINTENANCE STANDARD OF COOLING SYSTEM 60-5
INDEX 00 INDEX AND FOREWORD
00-14 PC1250-11R, PC1250SP-11R
MAINTENANCE STANDARD OF COOLING FAN PUMP 60-7
MAINTENANCE STANDARD OF COOLING FAN MOTOR 60-10
POWER TRAIN 60-12
MAINTENANCE STANDARD OF SWING CIRCLE 60-12
MAINTENANCE STANDARD OF SWING MACHINERY 60-13
MAINTENANCE STANDARD OF FINAL DRIVE 60-15
MAINTENANCE STANDARD OF SPROCKET 60-17
MAINTENANCE STANDARD OF SPROCKET TOOTH PROFILE FULL-SCALE DRAWING 60-18
UNDERCARRIAGE AND FRAME 60-20
MAINTENANCE STANDARD OF TRACK FRAME AND IDLER CUSHION 60-20
MAINTENANCE STANDARD OF IDLER 60-22
MAINTENANCE STANDARD OF TRACK ROLLER 60-24
MAINTENANCE STANDARD OF CARRIER ROLLER 60-25
MAINTENANCE STANDARD OF TRACK SHOE 60-26
MAINTENANCE STANDARD OF DOUBLE SHOE 60-29
HYDRAULIC SYSTEM 60-30
MAINTENANCE STANDARD OF MAIN PUMP 60-30
MAINTENANCE STANDARD OF SWING MOTOR 60-34
MAINTENANCE STANDARD OF CONTROL VALVE 60-37
MAINTENANCE STANDARD OF VARIABLE BACK PRESSURE VALVE 60-49
MAINTENANCE STANDARD OF WORK EQUIPMENT AND SWING PPC VALVE 60-50
MAINTENANCE STANDARD OF TRAVEL PPC VALVE 60-53
MAINTENANCE STANDARD OF SOLENOID VALVE 60-55
MAINTENANCE STANDARD OF CENTER SWIVEL JOINT 60-56
WORK EQUIPMENT 60-57
MAINTENANCE STANDARD OF WORK EQUIPMENT LINKAGE 60-57
MAINTENANCE STANDARD OF BOOM CYLINDER 60-64
MAINTENANCE STANDARD OF ARM CYLINDER 60-65
MAINTENANCE STANDARD OF BUCKET CYLINDER 60-66
80 APPENDIX 80-1
CONTENTS 80-2
AIR CONDITIONER SYSTEM 80-4
PRECAUTIONS FOR REFRIGERANT 80-4
AIR CONDITIONER COMPONENT 80-5
SPECIFICATIONS OF AIR CONDITIONER 80-7
CONFIGURATION AND FUNCTION OF REFRIGERATION CYCLE 80-8
OUTLINE OF REFRIGERATION CYCLE 80-9
COMPONENT PARTS OF AIR CONDITIONER SYSTEM 80-11
AIR CONDITIONER UNIT 80-11
COMPONENT PARTS OF AIR CONDITIONER UNIT 80-15
AIR CONDITIONER CONTROLLER 80-19
COMPRESSOR 80-20
CONDENSER 80-21
RECEIVER DRIER 80-22
SENSORS FOR AIR CONDITIONER SYSTEM 80-23
EXPLANATION OF PROCEDURE FOR TESTING AND TROUBLESHOOTING OF AIR CONDITIONER
80-25
CIRCUIT DIAGRAM AND ARRANGEMENT OF CONNECTOR PINS FOR AIR CONDITIONER 80-27
AIR CONDITIONER SYSTEM DIAGRAM 80-29
INPUT AND OUTPUT SIGNALS OF AIR CONDITIONER CONTROLLER 80-30
INSTALLATION LOCATIONS OF AIR CONDITIONER PARTS AND ARRANGEMENT OF CONNECTORS
80-32
TESTING AIR LEAKAGE (DUCT) 80-36
METHOD FOR TESTING AIR LEAKAGE (DUCT) 80-36
TESTING AIR CONDITIONER USING SELF-DIAGNOSIS FUNCTION 80-37
HOW TO OPEN THE ELECTRICAL SYSTEM ABNORMALITY RECORD SCREEN IN SERVICE MODE
OF THE MACHINE MONITOR 80-38
TEST VENT (MODE) CHANGEOVER 80-39
00 INDEX AND FOREWORD INDEX
PC1250-11R, PC1250SP-11R 00-15
METHOD FOR TESTING VENT (MODE) CHANGEOVER 80-39
TESTING FRESH/RECIRC AIR CHANGEOVER 80-40
METHOD FOR TESTING FRESH/RECIRC AIR CHANGEOVER 80-40
TEST SUNLIGHT SENSOR 80-41
METHOD FOR TESTING SUNLIGHT SENSOR 80-41
TEST (DUAL) PRESSURE SWITCH FOR REFRIGERANT 80-42
METHOD FOR TESTING (DUAL) PRESSURE SWITCH FOR REFRIGERANT 80-42
TEST RELAYS 80-43
METHOD FOR TESTING RELAYS 80-43
AIR CONDITIONER TROUBLESHOOTING CHART 1 80-44
AIR CONDITIONER TROUBLESHOOTING CHART 2 80-45
INFORMATION DESCRIBED IN TROUBLESHOOTING TABLE 80-48
FAILURE CODE [879AKA] 80-50
FAILURE CODE [879AKB] 80-51
FAILURE CODE [879BKA] 80-52
FAILURE CODE [879BKB] 80-54
FAILURE CODE [879CKA] 80-56
FAILURE CODE [879CKB] 80-57
FAILURE CODE [879DKZ] 80-58
FAILURE CODE [879EMC] 80-60
FAILURE CODE [879FMC] 80-61
FAILURE CODE [879GKX] 80-62
A-1 TROUBLESHOOTING FOR POWER SUPPLY SYSTEM (AIR CONDITIONER DOES NOT OPERATE)
80-64
A-2 TROUBLESHOOTING FOR COMPRESSOR AND REFRIGERANT SYSTEM (AIR IS NOT COOLED)
80-66
A-3 TROUBLESHOOTING FOR BLOWER MOTOR SYSTEM (NO AIR COMES OUT OR AIR FLOW IS
ABNORMAL) 80-69
A-4 TROUBLESHOOTING FOR FRESH/RECIRC AIR CHANGEOVER 80-71
TROUBLESHOOTING USING GAUGE PRESSURE 80-73
CONNECTION OF SERVICE TOOL 80-76
METHOD FOR CONNECTING SERVICE TOOL 80-76
PRECAUTIONS FOR DISCONNECTING AND CONNECTING HOSES AND TUBES IN AIR CONDITIONER
PIPINGS 80-78
HANDLE COMPRESSOR OIL 80-80
90 CIRCUIT DIAGRAMS 90-1
CONTENTS 90-2
HYDRAULIC CIRCUIT DIAGRAM 90-3
SYMBOLS USED IN HYDRAULIC CIRCUIT DIAGRAM 90-3
HYDRAULIC CIRCUIT DIAGRAM 90-7
ELECTRICAL CIRCUIT DIAGRAM 90-9
SYMBOLS USED IN ELECTRICAL CIRCUIT DIAGRAM 90-9
ELECTRICAL CIRCUIT DIAGRAM (1/16) 90-13
ELECTRICAL CIRCUIT DIAGRAM (2/16) 90-15
ELECTRICAL CIRCUIT DIAGRAM (3/16) 90-17
ELECTRICAL CIRCUIT DIAGRAM (4/16) 90-19
ELECTRICAL CIRCUIT DIAGRAM (5/16) 90-21
ELECTRICAL CIRCUIT DIAGRAM (6/16) 90-23
ELECTRICAL CIRCUIT DIAGRAM (7/16) 90-25
ELECTRICAL CIRCUIT DIAGRAM (8/16) 90-27
ELECTRICAL CIRCUIT DIAGRAM (9/16) 90-29
ELECTRICAL CIRCUIT DIAGRAM (10/16) 90-31
ELECTRICAL CIRCUIT DIAGRAM (11/16) 90-33
ELECTRICAL CIRCUIT DIAGRAM (12/16) 90-35
ELECTRICAL CIRCUIT DIAGRAM (13/16) 90-37
ELECTRICAL CIRCUIT DIAGRAM (14/16) 90-39
ELECTRICAL CIRCUIT DIAGRAM (15/16) 90-41
ELECTRICAL CIRCUIT DIAGRAM (16/16) 90-43
INDEX 00 INDEX AND FOREWORD
00-16 PC1250-11R, PC1250SP-11R
INDEX 1